Safety razor



G' 'B4 LAMBERT 'SAFETY RAZOR Filed YM'ay' 27' 1932 2 l Sheets-Sheety l .It n., M N 1b mm WL/m T.` WM Um. -a/ LWm,

May 2, 1933. v `@.LmmEmv v1,906,631

SAFETY RAZOR Filed May 27, 1952 'zismae-sneetv 2 'Fit'gl A J6 s 46 lAssIGNoap'ro GiLLE'rTE'sAFE'rY UsE'r'rs,A a coarona'rron' or DELawAJzE.

Patented May 2, l933` @man B'. LAMBERT; korrrnazvtzE'rori, NEW JERSEY,

EAzoE coMPAmLoE Bos'romEAssAcH SAFETYl Razon application-med may 27, 1932.: sei-mim. 613,903. Y

This invention relates to safety razors o f the type in which a thin,` `flexible blade is v clamped for shaving in operative position The conbetween cap and guard members.v vemenceof users of such razors Y requires that the blade-positioning and clamping op,-

kerations should be such that theyy may be 'quickly and conyeniently carried ,out` and also that the capy and guard ymay be easily y.separated to permit the removal and replace-4 ment of blades without obstruction; y In one aspect my invention\consists in cap and guard members sofconstructed and ar--` ranged that these operations may be eiected with an unusual' degree of convenienceand without entirely disconnecting the razor parts, thus avoiding the annoyance of loose e parts which mayfbecome misplaced or lost. lith this end in view,` aniimportant feature of my invention 'consists in ycap and guard` memberswhich are inter-connected for rela-I tive longitudinal ymovement to cover yor eX-. posethe blade, or the blade-supportingl face' of the razor, and also for relative movement toward and from each other to clamp or re-` Ylease the blade; A striking advantage of this'novelconstruction yis thatfa razor so constructedV may be adapted toppen itself automatically when the'operator releasesthe n ample, the cap clamping pressure upon the blade.` v For exif the razor .is held in an inclined position,

the .cap is free topvslide endwise and expose the blade-supporting face of the razor orl the used blade,

' as herein shown, :one is as the case maybe. `l,f There are` various ways in which the bladeclamping members of a safetyl razor may be connected toL achieveV the desiredresults, but I provided with a lon-k gitudinally-extending with a slide tting'therein whereby'the blade may be exposed b aguided endvvisey movement of one mem other.

I maybe efectedrwhilethe blade occupies a substantially flat position and` may be so out of theusers way.

may be yunlocked and freed]y of'frictionalcontact with the blade by mereturning a releasing Screw, andthereupom.

guide and the other er with reference to thel A desirable result of this construction is that the ,movement of lthe cap to andy `from superposed position abovevthe blade` controlled, as to obviatedanger of displacing the blade orimpai'ring the sharpness Vof its shaving edge. n f

Another n ovel v"feature (of, my invention consistsin cap` and guard members ,having a sliding connection limiting them .to endwise e movement under certain conditions, and including also ya hinge.` which becomes l effective only after-the ,blade or the blade-supportin face of `the guardwhasfbeen fullycxpose the hinge thereupon permitting the'capl to swing to an inoperative @position Y completely My invention-also 1 ture lockingmeans yfor positively maintaining the cap and guard members in superposed or blade-registering position while they are ybeing moved into blade-flexing or clamping position' and while they maintain theblade in afconditio'n oftransverse curvature forshaving As herein shown, the lockging means is designed to permit the full range of relative clamping movementy between the cap and guardfmembersfwhile maintaining them `positively insuperposed position and to release themforgrelativeendwise move- ,ment only\vhen they havebeen separated to an y extent which substantially Vreleases the bladey from its curved condition and permits it to reassume its normal lat position. l Such locking means contribute'to theconveniencef` of they user by preventing-relative longitudinal'movement of the cap and guard except under conditions when such movement may freely take placewithout frictional engagement ywith the interposed blade. f

Other features ofthe invention relate particularlyto thel construction and inter-relation `of the cap andy guard members. As

`herein shownythe handle is secured directly to the guardl and the guard isA designed to receive a guidey or carrier member. The cap is ncludes as a novel ea-- providedvvitliV a slide arranged 'to run in the guide member andy with a curved blade-shaping portion to "which the slide is connected. Connectionisfestablished ybetween the cap and guide member at both ends ofthe cap whenthe latter is moved into positionin registration with theblade so that a balanced blade-flexing pull may be transmitted to the cap i'n flexing or clamping the blade.

These and other features of the invention will be best understood and appreciated from the following description of a preferred em. bodiment thereof selected for purposes of illustration and shown in the accompanying drawings in which Figa'l is a view of the head of the razor in end elevation and a portion of its handle;

Fig. 2 is a view of the razor in cross section Fig. 3 is a view in longitudinal section; Fig. 4 is a view in cross section showing the cap in blade-releasing position;

Fig. 5 is a view in perspective showing the cap in avpartially displaced position;

Fig. 6 1s a view in side elevation showing the cap in position fully to expose the blade; Fig. 7 is a view in lon itudinal section with the parts in subst-antia ly the same position shown in Fig. 5, and Fig. 8 is a plan view of the razor with portions broken away showing the cap in its fully displaced position but before it has been moved angularly;

The illustrated razor comprises a guard member 10 `having a flat, bladesupporting surface bounded by spaced parallel shoulders 14 over which the blade is flexed by the cap.

. The longitudinal edges of the guard are provided with guard teeth 12.0f usual construction. The blade-receiving face of the guard is provided with a pair of spaced blade-locating projections 16,- herein shown as beingV diamond-shaped in outline. The guard 10 1s rigidly secured to or made integral with a forked head 18 which, with the barrel 20 constitutes the handle of the razor.

An elongated guide member 22 is movably mounted in the space between the forks of the head 18 beneath the blade-engaging face of the guard 10. A guide track 24 is formed in the upper face of the guide member 22 and extends longitudinally from one end thereof to the other, and this track has undercut flanges extending along its opposite longitudinal edges for the reception of a slide which will be presently described. The guide member 22 is held against longitudinal movement and prevented from being dis placed endwise in the forked head 18 by a spindle 30 which is housed within the barrel 20 of the handle and passes upwardly through a bore in the head 18. At its upper end, it is riveted into the bottom of the guide member 22. The spindle 30 is threaded at its lower end to receive a knurled nut 32 and this is retained in place by an annular flange upon the lower end of the barrel 2O which enters a circular groove in the `body of the nut.

It will be seen that by turning the nut 32 and moving the spindle 30 up or down, a correY spending movement is imparted to the guide member 22 between the forks of the head 18.

The guide member 22 is provided at its lefthand end, as seen in Figs. 3 and 6, with an upstanding ear 26 which terminates in an overhan ing lip 28. At its other end, it is provide with a pair of stop pins 25 which project into the guide track 24 at its rightland end, as shown in Figs. 6 and 8. At the same end, the guide member 22 is provided with a square notch opening through the bottom face thereof.

The cap comprises an elongated member 34 having a concave blade-shaping face with parallel, longitudinal edges which co-operate with the shoulders 14 of the guard in maintaining the flexible blade in a position of pronounced transverse curvature when the parts are positioned in shaving relation. The

lade-shaping member of the cap is connected through a neck 36 at its outer end with a slide member 38, having, at either edge, laterally-projecting flanges 39 which fit in the undercut ways of the track 24 of the guide member 22. The flan .es 39 terminate somewhat short of the leftE-qhand end of the slide 38 and a cross pin 37 is provided therein at its extreme end and this extends from wall to wall of the track 24 and limits the endwise blade-exposing movement of the cap by encountering the stop pins 25, as indicated in Fig. 8. It will be noted that the cap is guided in a rectilinear path so long as the flanges 39 of its slide are moving within the track 24, but when the cap member has been displaced endwise to the limit of its blade-exposing movement, the end of the slide 38 is positioned over the notch in the end of the guide member 22 so that the cap member is free to swing from the position shown in Fig. 8 to the inoperative position shown in Fig. 6. Since angular displacement of the cap is positively prevented until it has been moved to the limit of its blade-exposingmovement, all possibility is avoided of the captouching the blade and displacing it or dulling its shaving edge.

The cap member 34 is provided at its lefthand end, as shown in Figs. 3 and 7, with a recess forming a lip 40 which is arranged to interlock with the overhanging lip 28 of the guide member when the cap is moved fully into superposed position above the guard 10.` The slide member 38 of the cap is provided with a vertical hole 42 and this is arranged to be brought into alignment with a stationary pin 44 set in the forked head 18 and projecting upwardly into the throat thereof. The pin 44 constitutes a locking device for positively holding the cap member against displacement when the latter has been moved` into blade-engaging position and drawn down toward blade-flexing position. The upper end of the locking pin 44 clears i the lower face of the slide 38 by a slight amount only so that, as soon as the head 32 is turned to lower the guide member 22, the pin 44 will immediately enter the hole 42 D is and loc'kthe cap and guard members positive-y ly in alignmengwhile, at the same time, permitting lthem tobe moved relatively toward andfromeach other` to flea the blade and to, regulate the degree of flexing andfconslequently the amount of edge exposure of the blade with respect to tlie'gua'rd. i

A blade/16 suitable use with ythe razor above bescribedis shown in Fig.`8l 1`lie blade l i i iexble'a'nd resilient steelsharpv` ened at its opposite edges forshaving and i with a recess definis of thin,

provided at each cornerA l e ing elongated, unsliarpened"portions at eacli i fend ofthebiade.

diamond-shaped a y bladelocating proJe'ctioiis or guard.` f Q i The manner of using the illustrated ra.zct r'v f ,20 oingdescriptionj' but may be sun imarizedlas` The blade is also with an elongated' slot 28 containing spaced, i rtures designedto ht the will 'bel clear romfthelfore ollows f., Assuming that thefcap occupiestlieposi i tion shown in"Fig. 6it will be apparent that` the b lade-receivingfface of` tlieguard 10 is i ber is then pushed toward fully exposed and thattlie blade 46,inay conveniently positioned ftliereon' by the user,` n Having positioned the blade, .is swung upwardly 30 ,cross-pin the cap member, gabout the l37 to a positioiifiiialigiiiiient with the guard, as shown in `FigpfSL The cap inem-y the left, the slide' l 38 entering the of the guide member .22. In this movement, the. bladeshaping ineiiibe'r 340i the capi-.is brought into superposedrelatioii with the blade 46,'tlie move-' f `mentf'of-tlie. cap continuing untillthelip 4() Ais brought beneath tthe overhang-ing lip 28l of; the guide. member 22.` In this the hole/l2 in the slide 38 registers with the stationary pin 44 in :the forked headkl ot thehandle, In `this positiomthebladeishapfl touches the unilexedbludeG supported oi`i} the face o ttheguard Having moved Vthe foap .into its su transver'se-reurvature,in thebladeand minimum ledgey exposure.; The user is,jhowever,

position,

ing, member v34 ofjtlie cap clears, or barelyy erposed .position above the blade, thefknur yedfnut l32"isturned to draw carrying ywith it Contained member. The mit 32 may 'bey vthe ciap r34 to the limit of which theiblade is directly {en- Thisfcorresponds,tothe position of maximum free to increase k the amount of edge exposure rbyreleasingthe spindle and cap slightly by turning the knurlednut 32 reversely, whereupon, tlie blade 46 is permitted slightly to straighten or flatten vout thereby increasing its'eifective yWidth and e ge eiipoSui'el During this adjusting movement,"the locking pin provided axis .of the:

44 moves' inthe hole 4e of thesiide 3al @that I the capand guard are continuously maintained against possibility ofendwise'relattive displacement;

`vIt, will be noted that, Whnitlle Cialiiis moved toward the left in the razor, the overhanging lipv l28 of the longitudinally stationary lguide ineinber`22 interlocks withtheflip 40"ofv thev slide '38, tliusf'serving asa stopwtodetermine thefoperative: or blade-registering position of j the, capl memberf34.- Tlieconnection thus member vand the permanent connection aiordedj by ythe neck 36 atfit'sright-handend vserve yto transmit a balanced s'traiglitLline pull iugm blade.; s

[j 1 When the userfis ready to expos-ethe blade for purposes' of cleaning or. replacement, the

established 'at vthe left-hand `vend' offthefcap knurled nut32 `is turnedifeve'rs'ely,v elevating .[,to'tlie' call member; 34 in flexiii andclam studs tlieA p 'f f. ,g P

tliespindle 30, the guide member 22"'and the Y c ap member 34witli reference to the stationaryguard 10. The pin' 44jmaintains its 'Y locking engagement with thefhole l42 ofthe slide until tlie cap memberj34'has beeiiira'ised blade 46 after rvthe latter h 'as been permitted to reassui'ne its normal"flat.condition upon the, blade-supporting\ 'face lof the guard. Thereupon, the cap member becomes unlocked vand is vfree toslide'fendwise 4to the position suliieiently. substantially to disengage the shown in Fig.,8 for'fullyexposing theble i positionlshown iii Figg i It'y the iazoivis held vin' a position inclined fdownwai'dly toward Y right-hand end, or away trom the ear 26,'whenftlieloc`king pin and thereafter to tiltedfinto' 'thefan'giilar Allis disengaged from `tlit'islide38jand the' i lexing pressure loff'the 'cap membery 341elieved,tlien the whole lc ap,iiniii'ediately slides outwardly vto the llimitiof itsen'dwiseguided inove'nie'nt'and roksdown'wardlyinto its inoperative po'sitioin'as'fshown-in Figi'.v All this takes place automatically ,or under the Y influence kof gravity without any further manipulation or attentionon the of the user.

Patent of the United States isi-fk j 1.` `A safety razor having cap and'fguard members 'provided respectively `withconcave Y and convex ifo-operating bladesha ping faces adapted to fiexand elanip a flexible blade therebetweensaid members being interconnected by longitudinal guiding means where-v I f Having,tiiiedegribed my intention, `what I claim as newand desire to secure by. Letters fus by said members are guided'ffoirelative icc-y tilin'earl movement to. rcover or uncover the blade andtor relative movement toward and fronilcacli other to ,clamp release'tlie blade..-

A'safety razor `having cap and guard members provided respectively v iivithfconcave i and convex coloperating,bladesliaping faces adapted to, lflex `and clamp aff'iexible blade therebetween, said -members yhaving inter-k connected longitudinal guides and one member heilig guided on the other for rectilinear movementinto and out of superposed relation, and means for moving said members towanl and from each other toclamp or rc,- lease an interposed blade.

3. A safety razor comprising cap and guard members having respectively concave and convex 4faces co-operating to flex and .positionaflexible blade therebetween, one

. member including a longitudinallv-extending guide andthe other a slideV fit-tingtherein,

vwhereby the' blade may be uncovered by v guided endwise bodily movement of one member with reference to the other.

LA safety razor comprising a flexible blade, and co-'operating blade-clamping` .devicesV having co-operating blade shapmg faces engaging the blade to position and flex v the blade between them, one of sa1d dev1ees V having a longitudinal slide portion disposed parallel to and spaced from its blade-engag ing face, and the other device having a cooperating guideway spaced from its blade- Y engagmg face.

5. A' safety razor comprising co-operating i blade-clamping devices shaped y to flex between them a resilient blade, one of said de- VIi() `vicesincluding an elongated longitudinal slide spaced from its blade-engaging face,V

and the other having a guide member for receiving said slideand being mounted for bodily rectilinear movement toward and from 7 A safety razor comprising eci-operating cap and guard members having opposed con; cave and convex faces respectwely shaped to flex between them a resillent razor blade,

-a slide connecting said members whereby one 'may be displaced endwise with respect to the other to expose the blade-supporting face of one member, and a hinge connection whereby the cap may be swung into inoperative position after such endwise displacement. p

8. A safety razor comprising a guard member, a cap having a sliding connection therewith whereby the cap may be displaced endwise from a superposed position above the blade to a position in which the blade is exposed, said eonnection being arranged to maintain the capand guard in parallel relation untilthe blade is fully exposed and ineluding a hinge whereby the cap may 4be swung below the guard thereafter.

9. A safety razor comprising eo-opelating cap and guard members shaped to flex bctween them a resilient blade and being connected for,relativeendwise movement, and means intermediate the ends of the members for locking said members against endwise movement when in superposed relation with a blade flexed between them, theV locking means being arranged to leave said members free for blade-flexing movement toward and from eachother.

10. A safety razor lcomprising bladeclamping members-shaped to flex between them a resilient blade and being connected for relative endwise n'iovement, means for positioning said members in superposed relation with va blade between them, means for relatively moving said members toward each otherto flex the bladeand locking means rendered operative by such relative movement of said members.

11.Av safety razor comprising blade-` clamping membersshaped to flex between them a resilient blade and being connected for relative endwise movement, means for relatively moving said members toward each other while in contact with the blade, and means for positively .locking said members in registration with each other while being so moved, said second named means being arranged to release the bladesclamping members when they have been separated from blade-flexing position.

12. A safety razor comprising blade-shaping lnembers connected for endwise rectilinear'movement to and from superposed position with a flat blade between them, means for moving said members toward each other to flex the blade, and means for positively locking said members against endwise movement when the blade is flexed by them.

` 13.` A safety razor comprising blade-shaping members connected for endwise movement t-o and from superposed position upon opposite sides of a flat interposed blade, means for maintaining said members in shaving relation with the blade clamped in a position of pronounced transverse curvature, and locking means for saidmembers arranged `to release them for their endwise movement only when the blade is released sufficiently to reassume a substantial y flat condition.

' 14. A safety razor comprising a stationary guard, a cap connected thereto for endwise sliding movement to and from superposed position, means for spacing the cap from the guard so that a flat flexible blade may be interposed, means for drawing the cap toward the guard to flex the blade thereon, and a locking pin arranged to enter a part of the cap when it is moved into blade-flexing position.

l5. A safetylrazor comprising a guard having a blade-shaping face, a guide Vmember .movable toward and from said face of the guard, a slide longitudinally movable in the guide member, and a blade-shaping cap member connected to the slide.

16. A safety razor comprising a guard having blade-flexing shoulders in one face thereof, a guide member mounted for movement toward and from the other face of the guard, and a U-shaped cap member having a slide portion movable in the guide member and an overhanging portion with a concave bladeflexing face arranged to be positioned opposite to said shoulders.

17 A safety razor comprising a guard having a blade-supporting face, a guide member mounted beneath the guard and having a stop at one end projecting above the face of the guard, a cap member having one part sliding in the guide member beneath the guard and a blade-Herring part movable above the face of the guard and limited in its travel by said stop.

18. A safety razor comprising a guard having a blade-supporting face, a cap having a slide portion mounted for endwise movement below the face of the guard and an overhanging blade-ilexing portion, thecap being movable endwise to embrace the guard between said portions thereof, and means for moving the overhanging portion of the cap to flex the blade.

19. A safety razor comprising blade-flexing members arranged to engage between them a resilient blade, said members having coacting longitudinal guides `one of said members bein movable and guided endwise by said guides with respect to the other to uncover completely an interposed blade, and means for establishing a clampinr connection at both ends of one of said ittoward or from the other.

20. A safety razor com rising a guard having a blade-supporting ace, a cap having a co-operating blade-flexing face and being connectedto the guard for guided endwise movement and also swinging movement with respect theret0,`means or lockingksaid cap and uard in super osed position operating to re ease the cap w "ereby it may first slide and then swing by gravlty fully to expose the blade-supportin face of the ard. y

GE RD B. ERT.

memlbers for moving 

